Natural Selection, Adaptation and Evolution

This video tutorial covers the concepts of Natural Selection, Adaptation, Evolution and Fitness. It reviews how to interpret population graphs, provides examples of directional selection, stabilizing selection and disruptive selection, and also addresses several misconceptions about how natural selection works.
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[BOGObiology]. (2020, July 30). Natural Selection, Adaptation and Evolution. [Video File]. Retrieved from • Natural Selection, Ada...
#evolution #naturalselection #adaptation
Contents of this video:
00:00-00:20 Introduction
00:20-1:12 Fitness
01:13-2:32 Natural Selection & Adaptation
2:32-2:59 Misconception #1: Individuals Evolve
2:59-3:29 Sources of Genetic Variation
3:29-4:01 Misconception #2: Variation is Goal-Directed
4:01-4:25 Misconception #3: Survival of the Fittest
4:25-5:16 Population Graphs
5:16-6:31 Directional Selection
6:31-7:31 Stabilizing Selection
7:31-9:10 Diversifying/Disruptive Selection
9:10-10:33 Darwin Awards for Human Stupidity

Пікірлер: 90

  • @shayar5732
    @shayar57322 жыл бұрын

    The only video on the topic which has cleared my doubts.... subscribed 😄

  • @BOGObiology

    @BOGObiology

    2 жыл бұрын

    Thanks, Shayar! Glad it was helpful, I had fun making it. Sending love from Boston! -BOGO

  • @shayar5732

    @shayar5732

    2 жыл бұрын

    @@BOGObiology thanks for replying mam 😁😁

  • @dmia6155
    @dmia61555 ай бұрын

    I love all of the explanations from this channel, easy to understand and very detail!!

  • @cartoonwithw....
    @cartoonwithw....2 ай бұрын

    One of the best and well explained video 👍🏻

  • @tynyshasmith2414
    @tynyshasmith24142 ай бұрын

    Amazing video! Will certainly help me for my Ap biology quiz tmr!

  • @arianhanify
    @arianhanify8 ай бұрын

    Great video👌

  • @reineko222
    @reineko2222 жыл бұрын

    Thank u for this 🤍

  • @shazwena4973
    @shazwena49735 ай бұрын

    Thanks for Indonesian subtitle, it's helping much ❤

  • @winnet4081
    @winnet40813 ай бұрын

    Loved it!

  • @NoviceMGSYT
    @NoviceMGSYT3 жыл бұрын

    When is your next video.... Your videos help me a lot in my studies....'ll be waiting for your next vid

  • @BOGObiology

    @BOGObiology

    3 жыл бұрын

    Soon, within the next couple weeks hopefully! I have a full time "regular" job, so I have to squeeze in video-making on the side. Each video takes about 40-50 hours to make between the researching, scripting, animating and doing the voice overs. I used to make them in much less time but the quality was really poor (you'll FOR SURE see the difference if you look at videos from before 2016). Fingers crossed I'll have time to finish soon! Love, BOGO

  • @NoviceMGSYT

    @NoviceMGSYT

    3 жыл бұрын

    I understand that...thanks for the reply

  • @BOGObiology

    @BOGObiology

    3 жыл бұрын

    @@NoviceMGSYT My pleasure! Speed vs. quality is always a balancing act!

  • @akshit1862
    @akshit18623 жыл бұрын

    Great video

  • @BOGObiology

    @BOGObiology

    3 жыл бұрын

    Thanks, Amit! Sending love and best wishes from Boston! -BOGO

  • @bittumondal9116
    @bittumondal91162 ай бұрын

    Thanks a lot ❤️😁

  • @Spacecadet499
    @Spacecadet499 Жыл бұрын

    this makes me think about how I hear so many people talk about not wanting kids because of generational trauma /cycles and having to break those before having kids. these convos I had lead back to also violence we experience in the world now which lead me to think there are more people out there around the world feeling this, in a way that's breaking the cycle and delays a population what kind of effect will it cause? a lot of us are dealing with mental illnesses and fear it being passed down so don't have kids because of the experiences we had is that a type of selection?

  • @BOGObiology

    @BOGObiology

    Жыл бұрын

    Wow, great points. Yes, I'd say that absolutely qualifies as a type of selection. Definitely look into the idea of epigenetics; it hits on the intersection of environment and genetics including how trauma/prolonged stress can turn certain genes on or off. It helps us to appreciate the multigenerational impact of living through a war, witnessing genocide, being enslaved, etc. All of those have a measurable impact on our genes and on our health and wellbeing, but we're still trying to fully understand it. I made a video about it but it just barely skims the surface kzread.info/dash/bejne/g2x2r7JveKevk9I.html&ab_channel=BOGObiology

  • @Spacecadet499

    @Spacecadet499

    Жыл бұрын

    @@BOGObiology wow, I’m definitely looking into this later

  • @jumuomal

    @jumuomal

    11 ай бұрын

    Human beings are actually going against natural selection and Darwin’s theory with our feelings of empathy, love, care etc. actually our growth rate is stagnant I think.

  • @trafficjon400

    @trafficjon400

    8 ай бұрын

    6000, OR EVEN 6 TRILLION YEARS STILL SKIMMING SURFACES ALLOWING SOME TO BELIEVE AND THE OTHER SOME NOT TOO? LIKE ALLWAY'S AND DIED LONG AGO SAYING WE ARE GETTING SOMEWHERE!!!@@BOGObiology

  • @kristinmoonscience8257
    @kristinmoonscience82573 жыл бұрын

    This is a great video!

  • @BOGObiology

    @BOGObiology

    3 жыл бұрын

    Thanks! I had fun making it, especially coming up with all the silly "dating apps". I was cackling to myself as I was drawing the icons. Sending love and best wishes from Boston! -BOGO

  • @slingslang2934
    @slingslang29342 жыл бұрын

    Off topic maybe but what about gene regulation? surely genes get regulated differently in individuals depending on how much they're used. Which could slightly affect the next generations like with the regulation of melanin production.

  • @BOGObiology

    @BOGObiology

    2 жыл бұрын

    Hey Sling, great point about gene regulation. It's definitely a bit outside the scope of this particular video but I actually made another video about epigenetics that might be helpful if this is a topic you're interested in: kzread.info/dash/bejne/g2x2r7JveKevk9I.html&ab_channel=BOGObiology Ciao! -BOGO

  • @itsPeterPerfect
    @itsPeterPerfect3 жыл бұрын

    Hey guys, can you please tell me that how do you make these tyPes of videos 🤗

  • @BOGObiology

    @BOGObiology

    3 жыл бұрын

    Vittle is the app I use for animating, and then I add a voiceover and edit in iMovie. Here's a tutorial I made on using vittle. Hope this helps! -BOGO kzread.info/dash/bejne/rIyoo4-xpMi5ops.html

  • @itsPeterPerfect

    @itsPeterPerfect

    3 жыл бұрын

    Thanks a lot for your response 😊 This will help me a lot...

  • @noahway13
    @noahway132 жыл бұрын

    Is this audio very low or just me?

  • @carlavega3236

    @carlavega3236

    Жыл бұрын

    Yepp it's very low 🤔

  • @Sun-God2
    @Sun-God24 ай бұрын

    How many years can a species/genus live without becoming another species or another genus? For example, can a species survive thousands or even millions of years without significant change and without becoming another species? Can somebody explain this for me?

  • @rickdelatour5355

    @rickdelatour5355

    3 ай бұрын

    Sure. If there are no environmental pressures to change, then no change.

  • @luish1498

    @luish1498

    2 ай бұрын

    Yes, it is possible for a species to survive for thousands or even millions of years without undergoing significant change and without evolving into another species. This phenomenon is known as "stasis" or "living fossil" and is observed in some organisms that have remained relatively unchanged over long periods of time. One classic example of a living fossil is the coelacanth, a type of fish that first appeared in the fossil record around 400 million years ago. Coelacanths were thought to have gone extinct around 66 million years ago, but in 1938, a living specimen was discovered off the coast of South Africa. The modern coelacanth is remarkably similar to its ancient ancestors, and it has remained relatively unchanged for millions of years. Another example is the horseshoe crab, which has remained virtually unchanged for at least 450 million years. The horseshoe crab species we see today closely resembles fossil specimens dating back to the late Paleozoic era. These examples demonstrate that certain species can persist for long periods without undergoing significant evolutionary changes. However, it's important to note that while some species may remain relatively stable over time, others may undergo gradual changes or speciation events, leading to the formation of new species. Evolution is a complex process influenced by various factors, including environmental pressures, genetic variation, and random mutations. So, the lack of significant change in a species over a long period is not a universal rule but rather a fascinating exception observed in some cases.

  • @Minderwaardigheids
    @Minderwaardigheids2 ай бұрын

    Thanks for the video, I'll save it.👍

  • @minmin-zz3ev
    @minmin-zz3ev2 жыл бұрын

    cool i guess

  • @BOGObiology

    @BOGObiology

    2 жыл бұрын

    Thanks for stopping by, min min!

  • @clockwise7391
    @clockwise73913 жыл бұрын

    BUT WHATS THE DIFFERENCE BETWEEN ADAPTATION AND EVOLUTION? did it adapt or did it evolve

  • @nothandozwane3079

    @nothandozwane3079

    3 жыл бұрын

    When you adapt you evolve.(how I see it)

  • @nothandozwane3079

    @nothandozwane3079

    3 жыл бұрын

    You is populations btw x

  • @noncatholiccatholicrat6309

    @noncatholiccatholicrat6309

    Жыл бұрын

    Some people make up their own definitions of “adaptation” to suit their argument better on whether or not evolution exists. When speaking to those who argue adaptation is solely talking about an animal emphasizing it’s one characteristic of geno code within their set chromosomes, I would argue evolution = adaptation + mutation. But some people include “mutation” in their definition of adaption

  • @SamuelDeepak-tk4jj

    @SamuelDeepak-tk4jj

    3 ай бұрын

    I feel like their definition of adaptation is wrong, the textbook definition is "modification of an organism or its parts that makes it more fit for existence under the conditions of its environment"

  • @CVskills
    @CVskills Жыл бұрын

    I’m sorry but that’s not true..You have many mistakes in this video, how can I contact you to discuss them?!

  • @BOGObiology

    @BOGObiology

    Жыл бұрын

    What specific incorrect information did you notice?

  • @luish1498

    @luish1498

    2 ай бұрын

    @@BOGObiology 1 year later .... zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

  • @soju7977

    @soju7977

    29 күн бұрын

    ​@@luish1498LMAO

  • @mohamedhany2996
    @mohamedhany299611 ай бұрын

    I am failing thanks 🙏

  • @BOGObiology

    @BOGObiology

    11 ай бұрын

    You got this!

  • @zach9999
    @zach99993 ай бұрын

    gaytr is crazy

  • @BOGObiology

    @BOGObiology

    3 ай бұрын

    I couldn't resist!

  • @adeetharajkumar8235
    @adeetharajkumar82354 ай бұрын

    This is literally the copy paste of class 12th biology chapter "evolution" in India😃

  • @BOGObiology

    @BOGObiology

    4 ай бұрын

    It includes a joke about dating apps?? 🤣

  • @adeetharajkumar8235

    @adeetharajkumar8235

    4 ай бұрын

    @@BOGObiology except for that😁

  • @CPHSDC
    @CPHSDC8 ай бұрын

    FACT ALERT. The theory is great but the math doesn't work. The randomness of selection occurs at the DNA Base Pair which codes for an amino acid as part of a long sequenced chain of amino acids. These chains are then folded with the assistance of another enzyme (protein chain) into functional shapes with water loving spots and water hating spots. The folded globules then do a function in the scheme of the life of the cell. Most mutations are irrelevant or harmful. The entire process is random, then selection acts on the whole organism, the organism with many features, some good, some not so good. Maybe it screws its way into the next generation and gene pool, maybe not. Either way, It takes more than 500 million years, JACK. Imagine that.

  • @titicandysshorts8709

    @titicandysshorts8709

    4 ай бұрын

    Could you explain more for me ? So its not a valid theory ?

  • @red..riding..hood..

    @red..riding..hood..

    3 ай бұрын

    @@titicandysshorts8709he’s literally yapping the maths absolutely works out

  • @rickdelatour5355

    @rickdelatour5355

    3 ай бұрын

    So, what is your alternative? How do you feel life diversified?

  • @CPHSDC

    @CPHSDC

    3 ай бұрын

    I don't have a direct answer. I do have an analogy. Brueghel, Rembrandt, Picasso all used canvas, brush and oil paints to create their masterpieces.

  • @rickdelatour5355

    @rickdelatour5355

    3 ай бұрын

    @@CPHSDC we see organic chemistry happening naturally. So in your analogy the paint, canvases etc are all found existing in nature. We just found complex organic chemicals in the outer reaches of our solar system out past Pluto even. Further, we understand how they form. The stuff to form life is apparently ubiquitous. Now, can you answer my question? If you don’t understand or accept the current scientific consensus how did life diversify?

  • @westtexas806
    @westtexas8062 жыл бұрын

    Climate change I can't stand this BS

  • @henrycarson4848

    @henrycarson4848

    2 жыл бұрын

    Ratio+bozo+yb better 😹

  • @bmr4566
    @bmr45664 күн бұрын

    wow...turn that volume down a bit...you seem angry....like what natural selection does weeding out the bad stuff. We don't want it.